[simoncrypta]

Summary

Since #26 the desk is a sub-agent of the space's bash Shell. Herdr's shipped agents mod only draws sub-agents as child rows under an agent that is already in agents() (mods/agents/main.js tree() / withKids), and a bash Shell never is, so desks had no row in the agents list.

• bercail/mods/bercail-agents/: herdr-app do mod.clone '{"name":"agents","as":"bercail-agents"}' of the shipped mod (0.1.11), plus a small addition: deskRows() gives every live bercail.role=agent terminal that isn't in agents() and whose parent isn't either a top-level row, with its terminals() status (read like kidStatus); withDesks() puts it first among its space's agents; a click runs bercail-desk.agent:<desk>. Against the shipped mod the diff is only those functions, a header comment, two lines in render() and the two on_clicks.
• bercail/mods/bercail-desk: the agent command focuses the desk through focusAgent (selects the desk's space and its desk block first).
• bercail/layouts/bercail.json: the agents block uses bercail-agents. lib/config.sh installs and herdr-app checks both mods; lib/uninstall.sh removes both.
• docs/herdr-agents-subagents.md: written proposal and patch for Herdr's shipped agents mod (list sub-agents whose ancestors aren't agents). Not filed upstream.
• README / RECIPE updated; new tests/agents_mod_test.sh.

Review

No bstack council ran on this one (desk run overnight). Reviewed by Shep: confirmed the mod is the shipped agents mod plus the additions above (diffed against ~/.config/herdr-app/mods/agents/main.js); no shipped mod edited in place; space changes only on a click.

Test evidence

• All 25 tests/*.sh pass locally; tests/agents_mod_test.sh fails against the shipped mod ("a Shell sub-agent desk has no row") and passes with the clone.
• herdr-app check passes for bercail-desk and bercail-agents.
• shellcheck: no new findings on changed shell files.
• Live data: the installed mod's deskRows/withDesks run against live hc get + herdr-app ls data give rows for desks t72 (Desk-agents-row_Bercail, under Shell t71), t2x (RedwoodGQL) and t46, plus the pane agents. The live app runs the layout with bercail-agents and reports no errors. Not watched on screen (the window wasn't drawing for herdr-app shot), so the on-screen working -> idle row is left to check by eye.
• No "Agent" tab on any new desk (only the pre-desk: run the desk as a sub-agent of the Shell, drop the Agent tab #26 desk t6v still has one).

Closes bercail-dwo